Gs192

You have a combination of 2 SNP variations in MTHFR which influence homocysteine levels. This is found in ~20% of people. 0.08% of people had a double copy of a mutation in one of the SNPs, and a single mutation in the other. [PMID 15834246] .

gs193 indicates double mutations in both snps, and people with this are believed to be critically impacted, however several promethease users have self reported this genotype with no apparent consequences.